Two-channel stereo speaker



FIG. 1 is a perspective view of the stereo speaker design;

FIG. 2A is a front view of the stereo speaker design;

FIG. 2B is a partially cut away top view of the stereo speaker design; and,

FIG. 3 is a side view of the stereo speaker design. 

The ornamental design for a two-channel stereo speaker, as shown and described. 